Rotary actuators

Details Rotary actuators Rotary actuators

1976-06-17

1979-09-18

Hershkovitz, Abraham

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

92 31, 92136, 92138, F01B 702

Patent

active

041678974

ABSTRACT:
A piston rack rotary actuator, devoid of guiding tubes or rods along which the pistons reciprocate, is provided with guide bearings which eliminate or at least reduce the incidence of the separating forces which otherwise act on the racks (particularly when the pistons are moved towards one another) to displace them towards the cylinder wall and which thereby otherwise cock the pistons in the cylinder and cause scoring of the cylinder wall.

REFERENCES:
patent: 3246581 (1966-04-01), Carr
patent: 3505934 (1970-04-01), De Biasse
patent: 3537358 (1970-11-01), Bunyard
patent: 3672260 (1972-06-01), Gachot
patent: 3906923 (1975-09-01), Harker
patent: 3982725 (1976-09-01), Clark

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